Winding mechanism



C. D. LANNING. WINDING MECHANISM. APPH'CATION man MAY26. 1915.

Patented June 22, 1920.

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C. D. LANNING.

WINDING MECHANISM APPLICATION FILED MAY 26. 1915.

Patented June 22 19260 3 SHEETS-SHEET 3 Inventor.- Y 6%?16'8 fillanw' 92;

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UNl'lEE STATES CHARLES D. LANNING, OF BOSTON, MASSACHUSETTS.

WINDING MECHANISIH.

Application filed May 26,

To all whom it may concern:

Be it known that 1, CHARLES D. LAN- NING, a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Vinding Mechanism, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates particularly to the type of winding mechanism employed on ring frames and analogous machines wherein the processes of spinning or twisting and winding are carried on simultaneously by means of a ring rail or equivalent dev ce, which supports yarn guiding or controlling means and is moved lengthwise of the spindle or yarn receivers to govern the winding operation.

Referring specifically to ring spinning frames, it is well known that their chief function in the art is to provide a means for spinning or twisting much simpler than the self-acting mule, so that the product is had with less skilled help and at lower cost. The chief means by which this end is secured is the simplification of the spinning and the winding means, particularly the latter, whereby the formation of the yarn package on the receiver is effectuated by means entirely automatic and needing no control by the operator.

Again, these means in their simpler form embody a builder lever having a constant stroke, that is, energized from beginning to end of the formation of the package by a cam or equivalent device which is constant in action throughout the formation of the entire package. From this builder lever a' connection is made by appropriate mechanical means to the ring rail so that the latter is controlled in an appropriate manner.

One defect of this ring frame winding apparatus is that, as a result of its simple form, control of the gain and the traverse in the winding or building of the package is not had as accurately as with the mule. There is generally employed in the ring rail mechanism, as part of the connection from the builder lever to the ring rail, a flexible member running over appropriate Specification of Letters Patent.

Patented June 22, 1920.

1915. Serial No. 30,500.

cams, guides, sheaves, etc., and there is also generally employed what is termed the poker lever, commumcatlng motion finally to the ring rail by means of engagement of the lever with the poker, the engagement between the poker levers and pokers being a sliding connection. It has not heretofore been perceived that as a result of this method or plan of connection from the builder lever to the ring rail many inaccuracies in extent and character of movement are had finally in the ring rail, as compared with the effect had on the flexible connection by the builder lever and by the means for controlling the flexible connection mounted on the builder lever.

An important object of my invention is to provide, first, means on the builder lever itself for accurately controlling the flexible connection utilized to convey motion from the builder lever to the ring rail and, second, means whereby the variations had upon the flexible connection by the designed mecha nism on the builder lever are made exclusively regulative of the motion of the builder lever in communicating motion to the rin rail, by elimination of variable or varying connections; this being accomplished by a provision of connections from the builder lever and the flexible element mounted on and controlled thereby, to the ring rail whereby the relation, in communicated motion from the flexible element over to the ring rail, is maintained constant, or substantially so.

In the performance of the building opera tion the gain is the term applied to the acvance made each time by the ring rail at its lowest point in winding on a layer of yarn as compared with the lowest point taken by the ring rail in winding on the preceding layer of yarn; and the traverse is the length of stroke in winding on any given layer of yarn.

it is found advantageous, for instance, throughout the formation of the lower portion or base of the package, and until the package has reached its designed diameter, to give, in many cases, a progressively increasing gain throughout that portion of the package, so that the bottom coil of each layer of yarn will be laid safely ahead of effects which, in certain conditions, it is desirable to procure through appropriately and accurately controlling some change in the gain and some change in the traverse.

Means have been proposed for procuring these results upon the gain and the traverse; such as, for instance, shown in the patents of John V. Cunnifl No. 1,141,892 dated June 1, 1915; John V. Cunniff, No. 1,141,893 dated June 1, 1915; John V. Cunnifli', No. 1,141,894, dated June 1, 1915; J. K. Lanning, No. 1,141,875 dated June 1, 1915; C. D. Lanning, No. 1,141,876 dated June 1, 1915; Chas. B. obster, No. dated June 1, 1915.

But in all these mechanisms imperfections result mainly from the fact that effects had upon the chain or flexible element mounted on the builder arm, are inaccurately com.- municated to the ring rail as a result of the character of the guiding means for the flexible controlling member used, and because of the sliding connection between the final lever or poker lever and the poker rod; this latter connection being such that movements of the poker lever arm throughthe same number of'degrees of rotation, as it approaches the horizontal (or right angle relation to the poker lever) gives a greater movement to the poker, than does movement of the poker lever through the same degree of rotation as itrecedes from said horizontal or right angle relation to the poker.

My invention provides means whereby all these inaccuracies between the builder lever, and the flexible element controlling devices thereon, and the ultimate motion of the ring rail are eliminated, or substantially so.

. In the accompanying drawings;

Figure 1 is a side elevation with parts broken away. of a spinning frame having my invention applied thereto;

Fig. 2 is a side elevation on a larger scale of a portion of said frame in-order more clearly to show the connection and construc-' tion of parts;

Fig. 3 is a plan view of a portion of the mechanism shown in Fig. 1;

- ,Fig. 4 is a vertical transverse section taken through the ring frame at substantially the upright arm of the builder lever;

partially in side elevation of a portion of the mechanism shown in Fig. 4;

Fig. 6 is a longitudinal section taken through one of the shafts of the mechanism;

Fig. 7 is a diagrammatic representation indicating one of the portions of the flexible connection or element and the movements and attachments thereof; and

Fig. 8 is a somewhat diagrammatic representation of three of the disks to which portions of the flexible element are attached.

Referring more particularly to the drawings, the builder element herein shown is a cam indicated in Fi s. 1, 2 and 3 at 1, it being fast upon a shait 2 supported upon the framing and driven at a preferably constant speed in the direction of the arrow thereon from any suitable mechanism, such for e:- ample as a worm shaft. itself driven by sprocket gearing from the main drive shaft of the spinning frame. Preferably I drive the shaft 2 and cam 1 at a higher rate of speed than heretofore customary, without changing the speed at which the drawing or feed rolls and the spindles are driven, and therefore I impart more rapid traverse to the ring rail without, however, changing the speed of the spindles, the latter being preferably driven by bands from the drum and hence independently of the ring rail. I may rotate the cam or other builder element 1 at such a speed as to impart thereto a single complete rotation during a single complete traverse of the ring rail or other mechanism instead of,as heretofore, rotating the builder cam but a partial revolution for each complete traverse of the ring rail.

The spindle rail is represented at 3, the spindles at 4, the ring rail at 5, the spinning rings at 6 in Fig. 2, and the box rail or frame of the spinning frame at 7; These parts are preferably of usual formation and construction, the spindles being continuously rotated in one direction, preferably by bands from the usual drum and the yarns being delivered thereto by the usual'sets of drawing rolls, not shown. The builder mechanism. may be of either the take-on or let-off type, both these types being disclosed in the patents above referred to, and both of which may readily be adapted in substantially the manner therein shown to my invention. In the disclosed embodiment of the invention, 1 have represented a mechanism operating by take-on, but my invention is in no wise restricted or limited thereto. V Co-acting with and operated upon by the builder element 1, I provide a builder member having a to and fro stroke, and for that purpose, 1 preferably provide a builder lever. Such lever when the mechanism is of the take-on type, is preferablyarranged longitudinally of the frame, and when it is of Fig. 5 is a detail partially in section and the let-off type is arranged transversely of said frame. I-lerein I have represented said lever as arranged longitudinally of the frame, and have herein shown it as having a laterally extending arm 8 pivoted at 9 and preferably having a member 10 relatively adjustable with respect thereto by set screw or otherwise, as indicated at 11, and as having a roll 12 engaging the periphery of the builder element 1.

In building the yarn package, the yarn is laid upon the receiver in a series of nested cones or layers, each of which is formed during a traverse of the ring rail. In order that these layers may extend along or with suitable relation to the receiver, an incremental gain is imparted to the traverse mechanism, preferably between the successive traverses.

The traverse is maintained undiminished and preferably I impart a regular or constant uniform increase to the traverse while maintaining the gain undiminished and preferably while progressively increasing the gain. The preferred constant increase in the traverse, which'preferably is instituted at or near the base of the yarn receiver and may continue either to the top or to some suitable point intermediate the base and top, effects the laying of the yarn of each layer or traverse on slightly more open lines than the preceding traverse. The effect of this is to position uniformly the yarn laid on each raverse safely past or ahead of the yarn laid on the preceding traverse. The incremental increase of the gain tends safely to position the bottom coil of each layer ahead of the bottom coil of the preceding layer, and the progressive increase in the gain, when employed, assists what would otherwise be a constant gain safely to effect this object.

Inasmuch as each traverse is increased over its predecessor, each traverse advances more at the top of the wind than at the bottom. The effect of the described traverse and gain is to build a yarn package which at the bottom extends from the surface of the receiver to a maximum diameter without laying the bottom coil of any traverse or layer on top of or bemw the bottom coil of the preceding traverse or layer. The increase of traverse and incremental increase of gain are constantly efiectel to produce and maintain a correct form of package.

The formation of the yarn package is commenced with a certain minimum length of traverse which may be of any desired exent, as, for example, seven-eighths of an inch, such traverse being gradually increased throughout the entire length of the yarn package or to some suitable point intermediate the ends of the receiver, along which the package may be continued with an undiminished and preferably uniform j adapted to engage the toothed. ratch traverse. Excellent results have been. ob tained by commencing the yarn package with a traverse of seven-eighths of an inch and continuing the increase in the traverse to the upper end of the package where such traverse is one and a half inches or even more. i

The up and down portions of each traverse' may be imparted in equal or unequal times, but preferably the upward portion of the traverse occupies less length of time than the downward portion.

Although the increase in the traverse is referred to as constant, such term is used generically to refer to a preferably regular increase in the traverse occurring at a certain part of each traverse. Preferably the increase in the traverse and the increase in the gain are imparted near the end of the up stroke of the ring rail and terminating with the end of such up stroke. Such increase in the speed of the ring rail co-acts to secure a slight separation of the turns or winds of the conical layers, thus preventing the superposition of one coil of the layer directly upon another coil of the same layer.

In the present embodiment of the invention, both the traverse and the gain are effected through a flexible element, connection or chain. Herein I have represented one portion or part of the flexible connec tion as a chain 13 fixedly connected at ll to the member 10 of the builder lever. In order to secure a traverse and a gain of the proper character, I provide adjunctive devices cooperating with the builder lever and which act upon the flexible connection as an entirety between the ends or points of attachment thereof. F or this purpose, I have, in the disclosed embodiment of the invention, represented as attached to the ho rail- 7 a bracket 15 indicated in Figs. 1 and 2, and upon the upper end thereof have mounted upon a pivot or stud 16 a lever 17 having at its lower end a toothed segment 18 constantly meshing with a 19 loose upon a shaft 20, shown most clearly in Fig. 6, and having a hub 21 extending through 'l bracket 15 and having fast thereon a dis carrying a pawl 23, indicated in Fi fast upon the shaft 20 and daptod, when intermittently actuated by said pawl to impart a step by step rotation to said shaft 20. Said mechanism constitutes one kind of a pick mechanism for imparting step by step rotation to the shaft 20.

The pick mechanism is herein so arranged that the pick takes place while the ring rail is completing the last portion of the up traverse. Since the pick mechanism in this embodiment of the invention effects both the traverse and the gain conjointly with the other elements herein specified, it results that not only is the incremental increase in gain added just at the time when the ring rail is completing the up portion of its traverse,

but also s1nce increase in the traverse increases the general speed of the ring rail throughout the traverse, it results that the traverse is speeded up just as the ring rail is completing its up stroke. Thus, the proper laying of the yarn is secured first because the coils of each traverse are laid Well above each other at the top, and secondly because of the reduction ofthe number of coils made at the top,that is, when the yarn is being Wound upon that portion of the receiver of smallest diameter, and hence Where yarn breakage is most apt to occur. The number of coils laid at the top portion of each traverse is reduced in the manner described, since the number of coils made at any portion of the yarn package varies indirectly as the speed of the ring rail in traversing such portion of the package. The described increase in the speed of the ring rail at the upper portion of each traverse tends not only to compensate for the inherent tendency of a ring spinning mechanism to lay more winds of yarn at the upper portion of each traverse, but also tends to compensate for the lag of the traveler at the upper portion of the up stroke of the ring rail. The result is less variation in the speed of the traveler due to its lag at this portion of the up stroke with consequent diminution of yarn breakage and more uniform tension throughout the package. I

The lever 17 may be oscillated in any suitable manner, but preferably by the movement of the builder lever arm 8, 10. For this purpose, I preferably provide an arm 25 pivoted co'aXially with the builder lever arm 8, 10 and constituting in effect an upright arm of such builder lever. At its upper end said arm is provided with a lateral extension 26 having a transverse slot 27 most clearly indicated in Fig. 2. The lever 17 extends upwardly beyond its pivot as indicated at 28 in Fig. 2, and is there provided with an open slot 29 receiving a bolt 30 extending through said slots 27, 29, so that by securing said bolt in any portion of the transverse slot 27, the relation of the segment with the pinion 19 may be varied. The arm 25 is provided with a sleeve 31 receiving said shaft 20, and said sleeve is provided with a casing 32 partially surrounding the ratchet 24:, indicated in Fig. 6, and providing means whereby the pawl engages the ratchet only at or near the end of each movement of oscillation of the segment 17.

Vertically mounted in the arm 25 of the builder lever is a threaded shaft or screw 33 shown most clearly in Figs. 4, 5 and 6, and fast thereon is a bevel gear 34 meshing with a bevel gear 35 fast upon the shaft 20. Held from turning upon said screw 33 is a nut 36 which at the commencement of the building of the cop or yarn package is at or near the lower end of the screw 33, and is gradually elevated by the rotation of the screw from the shaft 20. The nut 36 has loosely mounted therein a stud shaft 37 extending through and projecting at both sides from said nut. lieyed upon the'ends of the said stud shaft 37, so as to be readily removable, are two sheaves 38, 39, shown most clearly in Figs. 3 and a. These sheaves may be truly circular, but if desired they, and particularly the sheave 38, may be formed as scroll or other cams, or may be of other desired form to of feet the take-on or let-off of the chain or flexible connection, as hereinafter more fully set forth. The chain or flexible connection 13 is fixedly connected as described with the member 10 of the builder lever at 14, and at its other end is fixedly connected at 40 to the periphery of the disk 38, as indicated in Fig. 2, said disk being, as stated, either circular or cam shaped as desired. The said disk 38 is moved outwardly from the fulcrum of the builder lever with the nut 36 as the building of the package progresses. Such outward movement with the maintenance of the constant stroke of the builder lever gives an increasing traverse to the ring rail. Peripherally attached at 41 to the disk 39 is a chain or flexible connection 42 which preferably is of very considerable length and substantially as great as permitted by the dimensions of the spinning frame. The chain 4-2 ext ids over and is peripherally attached to a disk 43 fast upon a shaft 44 mounted to turn in suitable bearings transversely of the frame. Likewise fast upon said shaft are two other disks 4:5, 46. By the provision of the chain 42 and disk 43 and a suitable connection to the ring rail controlling member, the resulting take-on or let-off ofsaid chain 42 may be made to give the desired gain.

In order to preserve accurately as ring rail motion the variations in the flexible element established. by the outward movement of the builder nut 36 and the simultaneous operative movement of the chain or flexible element controlling disks, 1 attach the chain 42 to the disks 39, a3, and make said disks whether they be circular or cam shaped, of the same or substantially the same size. Preferably the disks and d3 are circular, and the disk 38 may be circular or cam shaped, depending upon the character of gain desired. Within the scope of my invention, the disks 39, 43 may be cam shaped also.

I provide a positive connection from the disk or cam 4-3 to the ring rail, so that all movement of the said disk or cam will be communicated accurately as right line movement to the ring rail. This I accomplish in any suitable manner, but preferably by means of asprocket chain or sprocket chains operatively associated with the disk 43 and extending over appropriate sheaves and suitably attached to the appropriate poker rods of the ring rail. For that purpose, I have represented. the spinning frame as having transversely mounted therein a shaft 47 having fast thereon a guide sheave 48. The disk 45 is preferably formed as a sprocket wheel. Attached thereto and passing thereover is a sprocket chain 49 passing over the sheave 48, and thenceextending downwardly to the lower end of the poker lever 50, shown most clearly in Fig. 2, where it is attached thereto, as indicated at 51.

Dependent upon the dimensions of the ring frame, I provide a series of poker rods indicated at 50, 52, 53, 54 in Fig. 1, and I positively attach a sprocket chain to the lower end of each of said poker rods or otherwise provide a positive connection therewith. Certain of these connections are indicated in Figs. 1, 2 and 3. In Figs. 2 and 3, I have represented the disk 46 to which is peripherally attached a chain or flexible connection 55 extending from the under side thereof to and over a sheave 56 fast upon a shaft 5? transversely mounted in the ring frame. Said flexible connection 55 is at its end positively connected to the lower end of one of the poker rods, as, for example, the poker rod 54 shown in F 1.. Similarly I may provide positive connections such as sprocket chains extending to the poker rods 52, 53, shown in Fig. l. I have herein represented a sprocket chain 58 attached to the lower end of the poker rod 52 and extending over a sheave 59, and thence to any suitable disk or cam of the series herein referred to. The poker rod 53 is represented as having positively connected to the lower end thereof a sprocket chain 60 passing over a disk 61, and thence to the under side of a disk 62, to which it may be peripherally attached. Obviously, the connections to the various poker rods may be suitably varied within the scope of my invention.

By the means provided or in any other suitable manner all rotative movements of the disks or cams 38, 39 are communicated accurately as right line movements to the poker rods and to the ring rail itself. All effects had upon the flexible connection extending from the disks 38, 39 over to the disk 43 and to the other disks of the series are communicated thereto exactly as caused by the controlling devices for the flexible element mounted on the builder lever, namely, the disk 38. By the means described, constituting one embodiment of my invention, 1 pr vide p e an an es entiall un varying flexible connection between the yarn guiding means,that is the picker rods and the ring rail and the disks or cams 38, 39.

Preferably, the disk and the disk 39 are circular and of the same size, and I secure the desired effects upon the flexible connection 42 (as to lengthening or shortening the same) by the form of the disk 38 on the builder lever to which, as previously stated, is connected the chain 13 that is fixedly attached to the builder lever at 14. By this arrangement, change of relative positionbetween the two disks 39, 43 connected by the chain 42 is practically eliminated. If desired, however, the second disk on the builder lever (that is, the disk 39) may be of cam form, in which case the disk 43 would be of the same form and of the same size, as heretofore set forth.

In the claims I shall refer to the chains 13 and 42 as constituting the flexible connection which is composed of a plurality of portions. Thus, one end of said composite flexible connection is attached to the memher 10 of the builder lever at a fixed point, and the other end of said flexible connection is attached to the disk 43. Said flexible connection thus composed of a plurality of portions and connected at its ends to the builder lever at 14 and to the disk 43, is acted upon between its ends by the disks 38, 39 upon the upright arm of the builder lever and movable therealong with the nut 36.

In Fig. 7, I have diagrammatically indicated one of he chains or flexible connections of the spinning frame, as, for example, the chain 42. As indicated in said figure and in Fig. 1, I position the builder lever at or adjacent to one end of the frame, so that the length of chain extending from the disk 38 to the disk 48 and poker rod 50 is as long or substantially long as possi ble. I thus substantially eliminate any variation in the gain effects that would result from the chain controlling element on the builder lever moving into a different position its outward movement) as related to the d sk 48.

In said Fig. 7, I have diagrannnatically indicated at A the mean position of the upright arm 25 of the builder lever, and in dotted lines at B and C I have indicated the extreme positions thereof. In said Fig. 7, I have indicated at 4 the extreme upper position of the chain 42, at 42 the mean position thereof and at 42 the lowest position thereof. Regarding the point D as the upper surface of the disk 43, it will be observed that the arc F at the left of said Fig. 7 has the median position A. of the upright arm of the builder lever constituting a chord thereof. This chord A extends through radii rspectively formed by the chain when in the positions 42 and 42", or in other words the chain at the first and at the last (This are is, of course, part of an Archimedean spiral.) Consequently I substantially eliminate any variations in the length of the chain which might result from the outward movement of the disks 38 and 39 and substantially the only variation is that due to the rotative movement of these disks. The gain provided. for by such movement is therefore transmitted-to the rail 5 unmodified by other motions of the mechanism. This result is co'riperated in by the making of the disks 39 and 43 of the same size and shape. Assuming both said disks to 'be circular, there will result with a constant onward movement of the builder nut 36 a constant increase in the traverse. The desired variation in the rate of the gain may be had by making the disk 38 on the builder lever of appropriate form, as for example a scroll.

In Fig. 8, I have somewhat diagrammatically indicated the three disks 38, 39 and 43 without attempting accurately to indicate their relative size. I have in said figure indicated the disk 38 as of cam or scroll form, and the disks 39, 43 as circular and of the same diameter.

The invention is readily adapted "for use in connection with mechanism operating either by take-on or let-off of the flexible element, it being herein shown as operating by take-on. Any desired total increase traverse can be had by properly regulating the pick mechanism and the screw 33 controlling the builder nut 36. lVith any total increase of traverse any desired total increase of gain can be had. Thus, an increase of total traverse can be had in the same movement of the builder nut by increasing the diameter of the disks 39, 4:3, to which the portion'4l2 of the flexible element is attached, or by decreasing the diameter of the disk 38, to which the portion 13 of the flexible element is attached. Conversely, a decrease of total traverse can be had by decreasing the diameter of the disks 39, 43, or by increasing the diameter oi the disk 38. Finally, the rate of variation of the gain can be controlled by properly varying the form 'of certain of the disks and preferably by forming the disk 38 as a scroll. It is thus possible to change the total length of the cop or yarn package, and a given amount of increase 01" the traverse can be retained as 7 also any desired variation of the gain.

' While I have described and illustrated my controlling devices on the builder lever move outwardly with the builder lever for the purpose of securing an increasing traverse during the building of the cop or package (such controlling devices herein embodying two operatively associated disks 38, 39), it will be apparent that numerous modifications of such construction may be utilized. For example, the outwardly moving disk controlling the flexible element 42 may be rotated simultaneously with and by the outward movement of the builder nut, as through a rack and gear connection.

In accordance with the broad purpose of my invention, I provide a'flexible connection controlled by the builder'leve'r and provide means at its other terminal whereby the linear movement of the said flexible connection or element may be accurately and positively converted into the designed movement of the ring rail, 'thus eliminating all variations in movement.

In the drawings, the invention is illustrated'in the form of a winding mechanism wherein the flexible element directly controlled by the builder lever is taken on or shortened by the action of the flexible element controlling devices on-the builder lever. It will, however, beobvious that by a mere reversal of arrangement, the outward movement of the builder nut and the consequent increase in traverse can be had with the desired effects upon the gain in the letoff or winding mechanism, that is, the form wherein the flexible element directly controlled by the builder lever is constantly letoil" or lengthened by the action of the controlling devices therefor 'mounted on the builder lever.

Having thus described one illustrative em bodiment of my invention,I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation the scope of the invention being set forth in the following claims.

Claims.

1. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element connected to said builder lever, means upon the builder lever and movable therealong, to vary the operative length of said flexible element, a disk to which said flexible element is attached and positive and essentially unvarying connecting means between said disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said disk.

2. In a traverse motion for winding yarn yarn guiding means adapted to move in substantial parallelismto the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element having one end fixedly connected to said builder lever, means upon the builder lever and movable therealong to vary the operative length of said flexible element,- a pivotally mounted disk to which said flexible element is attached, and positive and essentially unvarying flexible connections between said disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means, the move ment of said disk.

3. In a traverse motion for winding yarn on yarn receivers, a rotatory yarnreceiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element connected to said builder lever and having a plurality of pertions, a rotatory member upon said builder lever and to which the portion of the flexible element connected to the builder lever is itself connected, a second rotatory member upon the builder lever and having movement with said first rotatory member, a second portion of said flexible connection being connected to said second rotatory member, a third rotatory member to which said second portion of the flexible connection is itself connected, and positive and essentially unvarying connections between said third rotatory member and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said third rotatory member.

4:. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexibleelenient fixedly connected at one end to said builder lever and having a plurality of portions, a disk upon said builder lever and to which is attached the portion of the flexible element directly connected to said builder lever, a second disk coaxial with the first disk and to which a second portion of said flexible element is used, means to move said first and second disks along said builder lever, thereby tovary the operative length of said flexible element, a third disl to which the other end of saic portion of the flexible element is attached, said second and third disks being of the same size and shape, and positive and essentially unvarying connections between said third disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said third disk.

5. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn rereiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element and having an upwardly extending arm, a flexible element connected to said builcer lever and having a plurality of pertions, a disk upon the upright arm of said builder lever and to which the portion oi the flexible element connected to said builder lever is itself connected, a second disk upon the upright arm of said builder lever and having movement with the first disk, a second portion of said flexible connection bein connected to said second disk, a third disk to which said second portion of the flexible connection is itself connected, the location and arnngement of the second and third disks and the portion of the flexible element connecting them being such that the mean position 01 the upright arm oi the builder lever forms substantially a chord between the two radii established by said second portion of the flexible element at the beginning and at the end of the buihling operation, andoperative connections between said third disk and said yarn guiding means.

6. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, builder element, a builder lever adapted to be oscillated by said builder element and having an upwardly extending arm, a flexible element connected to said builder lever and having a plurality of por tions, a disk upon the u n'ig'ht arm of said builder lever and to which the portion of the flexible element connec ed to said l'iuilder lever is itself connected, a second. disk upon the upright arm of said builder lever and having movement with the first dish, a end portion of said flexible connection b ing connected to said second disk, a third d which said second portion of the flexible connection is itself connected, the location and arrangement of the second and third disks and the portion of the flexible element connecting them being such that the mean position of the upright arm of the builder lever forms substantially a chord between the two radii established by said second portion of the flexible element at the beginning and at the end of the building operation, and positive and essentially unvarying connecting means between said third disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said disk. V

7. In a. traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, builder element, a builder lever adapted to be oscillated by said builder element and having an upright arm, a flexible elemen fixedly connected to said builder lever and having a plurality of portions, a disk mounted upon said upright arm and to which the portion of the flexible element connected to the builder lever is itself connected, a second disk upon said upright and having movement with the first disk along said arm, asecond portion oi said flexible connection being connected to said second disk, a third disk mounted upon the frame of the mechanism at a point remote from said builder lever and to which. said second portion of the flexible connection is directly attacned, wh reby a prolonged length of said flexible connection is provided between the second and third disks, and positive and essentially unvarying connections between said third disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said third disk. v

8. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element connected to said builder lever, means upon the builder lever and movable therealong, to vary the operative length of said flexible element, a

disk to which said flexible element is at tached and positlve and essentially unvarymg connecting means between said disk and said yarn guiding means, thereby to transmit positively and essentially unvaringly to the'yarn guiding means the movement of said, disk, and including means whereby the point at which the flexible element leaves the said disk remains substantially fixed in position during the building movement.

9. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder ele-' ment, a flexible element having one end fixedly connected to said builder lever, means upon the builder lever and movable there along to vary the operative length of said flexible element, a pivotally mounted disk to which said flexible element is attached, and positive and essentially unvarying flexible connections between said disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn. guiding means, the movement of said disk, and including means whereby the point at which the flexible element leaves the said disk remains substantially fixed in position during the building movement.

10. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adaptedto move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element connected to said builder lever and having a plurality'of portions, a rotatory member upon said builder lever and to which the portion of theflexible element connected to the builder lever is itself connected, a second rotatory membereupon the builder lever and having movement with said first rotatory member along said lever, a second portion of said flexible element being connected tosaid second rotatory member, a third rotatory member to which said second portion of the flexible connection is itself connected, and positive and essentially unvarying connections between said third rotatory member and said yarn guiding means, thereby to transmit positively and essentially unvaringly to the yarn guiding means the movement of said third rotatory member, and including means whereby the point atwhich the flexible element leaves the said third rotatory member remains substantially fixed in position during the building movement.

11. In a traverse motion for'winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver. a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element fixedly connected at one end to said builder lever and having a plurality of portions, a disk upon said builder lever and to which is attached the portion of the flexible element directly connected to said builder lever, a second disk co-axial with the first disk and to which a second portion of said flexible element is used, means to move said first and second disks along said builder lever, thereby to vary the operative length of said flexible element, a third disk to which the other end of said portion of the flexible element is attached, said second and third disks being of the samesize and shape, and positive and essentially unvarying connections between said third disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said third disk, and including means whereby the point at which the flexible element leaves the said third disk remains substantially fixed in position during the building movement.

12. In a traverse motion for winding yarn on yarn receiver's, a rotatory yarn receiver,

yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element and having an upwardly extending arm, a-flexible element connected to said builder lever and having a plurality of portions, a disk upon the upright arm of said builder lever and to which the portions of the flexible element connected to said builder lever is itself connected, a second diskuponthe upright arm of said builder lever and having movement with the first disk, a second portion of said flexible connection being connected to said second disk, a third disk to which said second portion of the flexible connection is itself connected, the location and arrangement of the second and third disks and the portion of the flexible element connecting them being such that the mean position of the upright arm of the builder lever forms substantially a chord between the two radii established by said second portion of the flexible element at the beginning and at the end of the building operation, and operative connections between said third disk and said yarn guiding means, and including means whereby the point at which the flexible element leaves the said third disk remains substantially fixed in position during the building movement.

13. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder ele ment and having an upwardly extending arm, a flexible element connected to said builder lever and having a plurality of portions, a disk upon the upright arm of said builder lever and to which the portions of the flexible element connected to said builder lever is itself connected, a second disk upon the upright arm of said builder lever and having movement with the first disk, a second portion of said flexible connection being connected to said second disk, a third disk to which said second portion of the flexible connection is itself connected, the location and arrangement of the second and third disks and the portion of the flexible element connecting them being such that the mean position of the upright arm of the builder lever forms substantially a chord between the two radii established by said second portion of the flexible element at the beginning and at the end of the building operation, and positive and essentially unvarying connecting means between said third disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said disk, and including means whereby the point at which the flexible element leaves the third disk remains substantially fixed inposition during the building movement.

l l. In a traverse motion for winding yarn on yarn receivers, a rotatory yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said re ceiver, a builder element, a builder lever adapted to be oscillated by said builder element and having an upright arm, a flexible element fixedly connected to said builder lever and having a plurality of portions, a disk mounted upon said upright arm and to which the portion of the flexible element connected to the builder lever is itself connected, a second disk upon said upright arm and having movement with the first disk along said arm, a second portion of said flexible connection being connected to said second disk, a third disk mounted upon the frame of the mechanism at a point remote from said builder lever and to which said second portion of the flexible connection is directly attached, whereby a prolonged length of said flexible connection is provided between the second and third disks, and positive and essentially unvarying connections between said third disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said third disk, and including means whereby the point at which the flexible element leaves the said third disk remains substantially fixed in position during the building movement.

15. In a traverse motion for winding yarn on yarn receivers, a rotary yarn receiver, yarn guiding means adapted to move in substantial parallelism to the axis of said receiver, a builder element, a builder lever adapted to be oscillated by said builder element, a flexible element connected to said builder lover, a pulley 38 upon the builder lever and movable therealong to vary the operative length of said flexible element, a pulley 13 to which said flexible element is attached and positive and essentially unvarying connecting means between said disk and said yarn guiding means, thereby to transmit positively and essentially unvaryingly to the yarn guiding means the movement of said disk, and including means whereby the point at which the flexible ele ment leaves the top of the pulley 48 remains substantially fixed during the building movement and during the movement of the pulley 38 upon the builder lever.

16. In a traverse motion for winding yarn on yarn receivers, a rotary yarn receiver, yarn guiding means 50 adapted to move in substantial parallelism to the axis of the receiver, a builder cam 1, a builder lever 10 directly acted upon by said builder cam, a chain 13 connected to the builder lever 10,

a screw and movable nut carried thereby and both positioned upon said builder lever a disk 38 to which the chain 13 is connected and positively and essentially unvarying, flexible connections, such as a chain between the disk 38 and the yarn guiding means 50, thereby to transmit constantly and substantially unvaryingly to the yarn guiding means the movement of said disk and in- 10 eluding means whereby the point at which the building movement.

In testimony whereof, I have signed my name to this specification, in the presence of 15 7 two subscribing witnesses CHARLES Witnesses: ARTHUR E.'C RsoN,

, MAY H. LOWRY.

D. LANN'ING; 

